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A fire hose 10 cm in diameter delivers water at the rate of 16 kg/s. The hose terminates in a nozzle 3.4 cm in diameter.
(a) What is the flow speed in the hose?
(b) What is the flow speed in the nozzle?
A heat pump is found to remove 2400 J of heat from the exterior of a house and deliver 3500 J of heat to the interior of the house
An electric water heater operates at 66 A and 16 kilowatts, Calculate N (the total number of resistors) and the cost of manufacturing the heating element if in a pack of 100 resistors cost $0.50
A rectagular boat is overloaded so that the water level (in fresh wateer) is just one centimeter (1.0cm) below the top of the boat, what is combined mass of all the people and the boat combined
A 115 V fish-tank heater is rated at 120 W, Calculate the current through the heater when it is operating
The rms voltage across a 0.012uF capacitor is 1.4V at a frequency of 58hz. What is the maximum current through the capacitor
suppose the memebers of an orchestra are tuning up their instruments, whats's the speed of the wave along the violin string
Two spectators at a soccer game in Montjuic Stadium see, and a moment later hear, the ball being kicked on the playing field. How far is each spectator from the player
A Carnot refrigerator operating between -10.0 ?Cand + 10.0 ?C extracts heat from the cold reservoir at the rate 100J/s. What is the rate at which heat is exhausted to the hot side
The second hand of a clock has a length of 0.30 m. Evaluate what distance does the tip of the second hand sweep through in 3 minutes and 45 seconds?
The steel I-beam in the drawing has a weight of 1.50 × 103 N and is being lifted at a constant velocity. What is the tension in each cable attached to its ends
How far does Tinki drive before passing David.
the index of refraction for crown glass is 1.512 at a wavelength of 660 nm (red), what is the angle of refraction for each wavelength
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